<ion-list lines="none" class="operations">
  <ion-item button (click)="doClick(InnerType.Unread)">标为未读</ion-item>
  <ion-item button (click)="doClick(InnerType.Top)">置顶该聊天</ion-item>
  <ion-item button (click)="doClick(InnerType.Hide)">不再显示该聊天</ion-item>
  <ion-item button (click)="doClick(InnerType.Delete)">删除该聊天</ion-item>
</ion-list>
